Click on the photo below for a really good article from Model Airplane News about FPV antennas.

Index for the Blacksheep Tips:
Here is a great tip from John Lawyer for all those planes that have wing bolts that can be difficult to get to.

- take a nylon 1/4 x 20 bolt, or what ever size your wing has

- go to the hardware store and get nylon wing bolts that match the bolt

- thread the wing nut on the bolt as shown in the photo

- use a drop of glue, Ca glue will work, and let it dry

- now you have a wing attach bolt that you will be able to get a grip on it to make installation and removal much easier

Testing Glow Fuel

As spring nears and you are digging out your
old jugs of low fuel and wondering if it is still
good. Here is a simple test to check. First
thing, if you open the jug and it smells bad or
rotten, probably is. If it looks like the alcohol
and oil have separated, shake it up to see it all
blends back to what it should be. Glow fuel will
typically store for quite some time and be good
as long as it has not been exposed air, sunlight
or extreme temperatures. My glow fuel jugs
use a Sullivan cap that has o-rings on it as well
as o-rings where the hoses plug in to it. They
are expensive, but worth it if it saves your fuel.
And the time often spent trying to trouble shoot
a problem that may be bad fuel.

To perform a test of your glow fuel, all you
need is hydrogen peroxide (available at any
local pharmacy), litmus paper and glass cup or
small jar.

1. Using a tablespoon, measure an exact 1 to 1
mixture of hydrogen peroxide and glow fuel
into your glass cup or glass jar.

2. Stir and let stand for 1 minute

3. Dip a litmus paper strip in to the mixture and
let dry.

4. If the paper changes color, looks pinkish on
the tip, the reaction is positive and
the fuel is good.

5. If the paper does not turn pinkish or looks
“marbled” and it is still wet after 10
minutes, you have gotten no reaction and the
fuel is bad.